#include<iostream>
using namespace std;
int sum(int num1, int num2) {
  int _sum = num1 + num2;
  return _sum;
};
int main() {
  int a;
  cout << "请输入第一个数字：" << endl;
  cin >> a;
  cout << "请输入第二个数字：" << endl;
  int b ;
  cin >> b;
  cout << sum(a, b) << endl;
}